The clock tree used in a region is called a regional clock tree (RCT). The synchoros VLSI design style requires that the RCT, like the regional NoCs, is also created by abutting its fragments. The RCT fragments are absorbed within the SiLago blocks. The RCT created by the abutment is ...
In order to lessen the reflections at the branch points of the tree, the interconnect width of the segments at each branch point is halved (for a 2× change in the line width) to ensure that the total impedance seen at that branch point is maintained constant (matched impedance). Show ...
As power consumption of the clock tree dominates over 40% of the total power in modern high performance VLSI designs, measures must be taken to keep it under control. One of the most effective methods is based on clock gating to shut off the clock when the modules are idle. However, prev...
Clock Tree Networks are Pillars and Columns of a Chip. With these series of lectures, we have explored on-site concepts applied in VLSI industry. It is a One-Stop-Shop to understand industrial VLSI circuits. The videos will develop an analytical approach to tackle technical challenges while bui...
(CSA) cells. Iterative use of the CSA array provides the Wallace tree function in one-seventh the chip area or number of adders of a conventional implementation. The multiplier and divider are pipelined internally, driven by a fast, two-phase internal clock that is transparent to the user. ...
The third step is to define the clock exceptions with ‘set_clock_tree_exceptions’ command. It is important to set clock exceptions correctly as they will impact the clock tree synthesis result. Use ddr_phy_clk clock in the pll2_clk clock domain as an example, according to previous analysi...
However, most existing power-aware clock-tree minimization algorithms optimize power on the basis of flip-flops alone, which may result in limited power savings. To achieve a power and timing tradeoff, this paper investigates the pulsed-latch utilization in a clock tree for further power savings....
clock treehigh-speed VLSI circuitsskew minimizationClock delay and skew minimization is an important problem in design and layout of high speed VLSI circuits. Clock delay and skew can be minimized either by a good routing strategy, or by inserting buffers in the clock tree. In this paper we ...
Effective buffer insertion of clock tree for high-speed VLSI circuits : Bo Wu and Naveed A. Sherwani. Microelectronics Journal23, 291 (1992)doi:10.1016/0026-2714(93)90212-HMicroelectronics Reliability